Road Rescue · Canada · Crit
Road Rescue Ambulance: Electrical
Affects Road Rescue Ambulance · 2003 — about 3 vehicles.
The hazard
On certain ambulances equipped with the Smart Display electrical system containing Field-Effect Transistor (FET) output boards, the power distribution panel for the Smart Display are equipped with type 1 circuit protection. This allows the board to shut down if an over-heating condition or an over-current condition is detected. As the board cools down, it comes back on, allowing the board to continually cycle leading to possible failure. As a result, the board could overheat or melt down, which could cause a fire. Correction: Dealers will install a new transistor FET board that contains type 2 circuit protection.
What to do
Contact your dealer; the remedy details were not included in the filing.